Uploading large profiles seems to fail

I set the max recording size at 2GB and recorded an entire run of https://browserbench.org/Speedometer/

I get the following when trying to upload:

```

c@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:2:17077
div
div
div
hv@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:136:65510
div
gv@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:136:66850
Kc@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:67:4631
aw@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:143:16345
c@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:2:17077
div
div
div
vw@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:143:26321
tS@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:147:90397
c@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:2:17077
ZS@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:147:118305
c@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:2:17077
hm@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:114:6426
c@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:2:17077
div
iS@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:147:92450
c@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:2:17077
Vc@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:67:4385
vT@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:147:137654
c@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:2:17077
Se@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:2:15419
Bf@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:121:15249
xT@https://profiler.firefox.com/main.814db0869f7b0e33961a.bundle.js:147:138732
```

┆Issue is synchronized with this [Jira Task](https://mozilla-hub.atlassian.net/browse/FP-600)